So what do candles and joints (aka “doobies”) have in common with baseboard electric resistance heating and heat pumps?  Read on Macduff[1]

Over the years I have been in countless buildings that experienced discoloration of carpeting due to particulate accumulation (Photograph 1).  I have also observed particulate deposits on window blinds, inside of kitchen cabinets and on appliance surfaces (microwave ovens and refrigerators).  Additionally, I have seen lots of “ghosting” of framing members on the interior gypsum board surfaces of exterior walls.   Yes, of course, more with steel studs…but also with wood studs. Yup, wood (Photograph 2).


Jon Sullivan [Public domain], via Wikimedia Commons

Read more…